This application note introduces high efficiency, high density, PolyPhase converters for high current applications.
As logic systems require higher currents, paralleling several power regulators is often necessary. This document introduces smart PolyPhase techniques that interleave clock signals to reduce input and output ripple current without increasing switching frequency. By using the LTC1629 or LTC1628 controllers, designers can achieve high efficiency and use smaller components like inductors and capacitors.
They interleave the clock signals of paralleled power stages, which reduces input and output ripple current without increasing the switching frequency.
The LTC1629 solves problems related to complex timing and current-sharing requirements for high current, single output designs.